Gender-Dependent Associations Between Digit Ratio and Genetic Polymorphisms, BMI, and Reproductive Factors

1 - Carol Davila University of Medicine and Pharmacy, Bucharest, Romania; silvia.nica@umfcd.ro (SN); lucian.ciobica@umfcd.ro (MLC); matei- ioan.nica0720@stud.umfcd.ro (MIN)

2 - Molecular Biology Department, National Research and Development Institute for Food Bioresources – IBA Bucharest, Bucharest, Romania; robert.sionel@bioesurse.ro (RS)

3 - Faculty of Biology, University of Bucharest, Bucharest, Romania; maciuca.roxana-alexandra@s.bio.unibuc.ro (RM); danut.cimponeriu@bio.unibuc.ro (DC); iuliana-c@outlook.com (IC); irina.radu@bio.unibuc.ro (IR)

4 - Faculty of Medicine, Titu Maiorescu University, Bucharest, Romania; mihai.toma@prof.utm.ro (MT)

DOI: https://doi.org/10.55453/rjmm.2025.128.1.10

Received: 22 September 2024

Revised: 2 October 2024

Accepted: 15 November 2024

Abstract:

The digit ratio (2D:4D) has been associated with prenatal hormonal influences and various traits and pathologies. This article explores the relationship between 2D:4D and a series of common polymorphisms and Torque Teno Viruses. In this study, 120 healthy participants were included. The IGF2 Apa I, ACE I/D, INS -23 Hph I, VDR Fok I, VDR Apa I, VDR Taq I, AT1R A1166C polymorphism were genotyped by PCR-RFLP technique, and the IL-6 -174 G/C polymorphism by tetra-primer ARMS-PCR. The presence of TTV was identified by a hemi-nested PCR technique. Haplotype analyses were performed using the SHEsis software. The average 2D:4D values were similar for men and women. Overweight men presented higher 2D4D ratios than normal-weight women (p<0.05). Lower 2D:4D values were recorded in women with pregnancy loss or one child or none (p<0.001). Men with lower 2D4D ratios reported a higher number of children (p<0.001). The IGF2 GG and ACE DD were associated with a higher digit ratio in all subjects and in the women’s subset. A significant association was found in men between 2D:4D and the INS-23 Hph I – IGF2 Apa I T-G haplotype (p<0.01). The data obtained in this study indicate a sexual dimorphism for the digit ratio. The associations between 2D:4D and the genetic polymorphisms studied could be influenced by gender.

Keywords:
Citation:

Nica, S; Sionel, R; M Cimponeriu, D; Ciobica, ML; Nica, MI; Chelu, I; Radu, I; Toma, M. Gender-Dependent Associations Between Digit Ratio and Genetic Polymorphisms, BMI, and Reproductive Factors. R. J. Mil. Med. 2025, 128(1): 78-86; https://doi.org/10.55453/rjmm.2025.128.1.10

Gender-Dependent Associations Between Digit Ratio and Genetic Polymorphisms, BMI, and Reproductive Factors

Cite this article

APA Style

Nica, S., Ciobica, M., Nica, M., Sionel, R., Cimponeriu, D., Măciucă, R., ... Toma, M. (2025). Gender-Dependent Associations Between Digit Ratio and Genetic Polymorphisms, BMI, and Reproductive Factors. Romanian Journal of Military Medicine, No.1 / 2025, Vol. CXXVIII, January. https://doi.org/https://doi.org/10.55453/rjmm.2025.128.1.10

Vancouver Style

Nica S, Ciobica M, Nica M, Sionel R, Cimponeriu D, Măciucă R, et al.. Gender-Dependent Associations Between Digit Ratio and Genetic Polymorphisms, BMI, and Reproductive Factors. Romanian Journal of Military Medicine No.1 / 2025, Vol. CXXVIII, January. 2025. DOI: https://doi.org/10.55453/rjmm.2025.128.1.10.

Harvard Style

Nica, S. et al. 2025, 'Gender-Dependent Associations Between Digit Ratio and Genetic Polymorphisms, BMI, and Reproductive Factors', Romanian Journal of Military Medicine, No.1 / 2025, Vol. CXXVIII, January, DOI: https://doi.org/10.55453/rjmm.2025.128.1.10.